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Emergency Alerting Systems
05 September 2010
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Summary
System Overview
The Name
Background
Objectives
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Overview of Trial Findings

The table below shows design criteria, proposed solutions, and findings from the trial.

Design Criteria

Design Solution

Findings

Multiple Recipients

To support list-based delivery, the system includes a database of recipient addresses or can be connected to an existing database. To support location-based delivery, the system supports geographical indexing to allow recipients to be selected by location on a map.

List-based delivery was successful.

Location-based delivery based on postal codes was successful.

A working map interface was implemented but the project did not have access to a GIS-encoded address database. The design of the Newsbug system affords connection to geographic databases of telephone numbers (or fax numbers or email addresses) to deliver messages to all residents within a specified area.

Multiple Channels

The system delivers messages via fax, website, email, voicemail, and SMS, and can be extended to deliver automated messages to television, pre-recorded messages to radio, automatic invocation of SEWS, or delivery of images, such as fire or cyclone maps.

The system successfully delivered messages via fax, website, email, voicemail, and SMS.

Multiple Hazards

The Common Alerting Protocol has been designed to support a complete range of emergency event.

The system successfully accommodated message sequences based on an actual bushfire in the Boya region of WA and Tropical Cyclone Inigo, in the Pilbara region.

Multiple Stakeholder Groups

The system supports delivery of messages to specific groups of recipients, which could be used to target specific stakeholder groups, such as Emergency Managers.

Different types of stakeholders were involved in the trail and expressed support for the proposed system.

disabled people

Delivery of messages over multiple channels should help some groups of disabled people to receive messages more expediently; for example, deaf people may prefer SMS messages, blind people voicemail.

Disabled people were not specifically identified during the trial.

non-English speaking residents

The system supports sending multiple versions of a message, which could be used to deliver messages to non-English speakers.

Non-English messages were not created during the trial.

residents of remote communities

The use of multiple message delivery channels means that the Newsbug system can employ whatever infrastructure is available to deliver messages to remote communities. Interactive television is an interesting possibility in this respect, in that many remote communities, without residential telephone or broadband service, do have televisions connected to satellite by means of digital decoders capable of receiving messages from the Newsbug system (Andrew Turk 2004).

Capability to send messages to targeted satellite television set top boxes was established, but not implemented.

This aspect is being further investigated as part of the ‘Digital Interactive Remote Television’ project, funded by the Desert Knowledge CRC.

Multiple Senders

The Newsbug system is implemented as a web service, which allows messages to be sent from any computer connected to the internet. The Common Alerting Protocol supports identification and verification of message senders to facilitate message security, control, and coordination.

Messages were successfully generated from multiple senders and locations, using passwords and web-based interfaces.

Multiple Platforms / Applications

The Newsbug system is implemented in Java as a web service to be computer operating system independent.

The Common Alerting Protocol is an XML schema, designed to provide interoperability across systems and platforms.

With modest changes to the underlying code, the system was able to operate with a 3rd-party CAP-based message composition interface.

Write-once message input

The Newsbug system is a “write-it-once” system, automatically generating all output from a single message input, thereby keeping operational “overhead” effort to a minimum. The system uses a text-to-voice engine to generate voicemail messages from text. The system also supports recorded voice messages.

Each message in the trials was entered into the system once for formatting and delivery to multiple channels. Synthetically generated Voicemail messages received no negative comment.



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